Family name Sernin (Sernin 
) , in the world, is a rare surname. The cognomen Sernin is characteristic of Belgium, where it is a rare surname, France, and the Democratic Republic of the Congo. Also, Sernin is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Sernin | Germany, Belgium, Switzerland, France, Democratic Republic of the Congo |
| françois sernin French politician (1782-1847), FR (b. 1782) |
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| andré sernin French writer (1921-1997), FR (b. 1921) |
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| ludovic de saint sernin BE (b. 1990) |
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